Related Articles
Program to find simple interest
• Last Updated : 22 May, 2018

What is ‘Simple Interest’?
Simple interest is a quick method of calculating the interest charge on a loan. Simple interest is determined by multiplying the daily interest rate by the principal by the number of days that elapse between payments.
Simple Interest formula:

Simple interest formula is given by:
Simple Interest = (P x T x R)/100
Where,
P is the principle amount
T is the time and
R is the rate

Examples :

```EXAMPLE1:
Input : P = 10000
R = 5
T = 5
Output :2500
We need to find simple interest on
Rs. 10,000 at the rate of 5% for 5
units of time.

EXAMPLE2:
Input : P = 3000
R = 7
T = 1
Output :210
```

## Recommended: Please try your approach on {IDE} first, before moving on to the solution.

The formula to calculate the simple interest is: simple_interest = (P * T * R) / 100 where P is principal amount, T is time & R is rate of interest.

## C++

 `// CPP program to find simple interest for``// given principal amount, time and rate of``// interest.``#include``using` `namespace` `std;``int` `main()``{``    ``// We can change values here for``    ``// different inputs``    ``float` `P = 1, R = 1, T = 1;`` ` `    ``/* Calculate simple interest */``    ``float` `SI = (P * T * R) / 100;`` ` `    ``/* Print the resultant value of SI */``    ``cout << ``"Simple Interest = "` `<< SI;`` ` `    ``return` `0;``}`

## Java

 `// A Simple JAVA program to compute ``// simple interest for given principal``// amount, time and rate of interest.``import` `java.io.*;`` ` `class` `GFG``{``    ``public` `static` `void` `main(String args[])``    ``{   ``        ``// We can change values here for``        ``// different inputs``        ``float` `P = ``1``, R = ``1``, T = ``1``;``         ` `        ``/* Calculate simple interest */``        ``float` `SI = (P * T * R) / ``100``;``        ``System.out.println(``"Simple interest = "``+ SI);``    ``}``}`` ` `// This code is contributed by Anant Agarwal.`

## Python3

 `# Python3 program to find simple interest``# for given principal amount, time and``# rate of interest.`` ` `# We can change values here for``# different inputs``P ``=` `1` `R ``=` `1` `T ``=` `1` ` ` `# Calculates simple interest ``SI ``=` `(P ``*` `R ``*` `T) ``/` `100`` ` `# Print the resultant value of SI ``print``(``"simple interest is"``, SI)``  ` `# This code is contributed by Azkia Anam.`

## C#

 `// A Simple C# program to compute ``// simple interest for given principal``// amount, time and rate of interest.``using` `System;`` ` `class` `GFG {``     ` `    ``// Driver Code``    ``public` `static` `void` `Main()``    ``{ ``         ` `        ``// We can change values here for``        ``// different inputs``        ``float` `P = 1, R = 1, T = 1;``         ` `        ``// Calculate simple interest ``        ``float` `SI = (P * T * R) / 100;``        ``Console.Write(``"Simple interest = "``+ SI);``    ``}``}`` ` `// This code is contributed by Nitin Mittal.`

## PHP

 ``

Output :
```Simple Interest : 0.01
```

This article is contributed by Anurag Rawat. If you like GeeksforGeeks and would like to contribute, you can also write an article using contribute.geeksforgeeks.org or mail your article to contribute@geeksforgeeks.org. See your article appearing on the GeeksforGeeks main page and help other Geeks.

Please write comments if you find anything incorrect, or you want to share more information about the topic discussed above.

Attention reader! Don’t stop learning now. Get hold of all the important DSA concepts with the DSA Self Paced Course at a student-friendly price and become industry ready.

My Personal Notes arrow_drop_up